Open AccessRemoving Metal Ions of Cobalt (II) from Aqueous Solutions By CaO Nanoparticle
Author(s) -
Ahmed A. Alibrahimi,
Wisam Okash Toamah
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1279/1/012023
Subject(s) - calcination , aqueous solution , scanning electron microscope , adsorption , sorbent , metal , cobalt , transmission electron microscopy , metal ions in aqueous solution , nuclear chemistry , materials science , fourier transform infrared spectroscopy , nanoparticle , chemistry , inorganic chemistry , analytical chemistry (journal) , chemical engineering , chromatography , metallurgy , nanotechnology , catalysis , biochemistry , engineering , composite material
Colloidal particles of “Calcium0oxide” CaO” nanoparticles0were prepared by the (sol-, gel)method)from(CaCl2). The study focused on the removal of metal Co(II) from aqueous solutions by adsorption process. Powder CaO was calcination at temperature 500oC. The 9 structural (characteristics) of the synthesized sorbent-were investigated, by-means of (X-ray) analysis “XRD” FTIR spectroscopy, “transmission electron microscope” (TEM), “scanning electron microscope” (SEM) and surface area. The effect of various parameters like as the effect of pH (2, 5, 7, 8 and 10), initial concentration for metal ion Co(II) (50-350 mg/L) and temperature difference (5, 25, 45 and 65) oC. Almost complete removal (99 %) of metal ion Co(II) was obtained within 30 min at an optimum adsorbent dose of 0.05 mg for initial Co(II) concentration of 50 mg/L at pH = 7, room temperature (≍ 25oC) were achieved.